Process of making printing-slugs.



H. 0'. GAMMETER. v PROCESS OF MAKING PRINTING SLUGS.

APPLICATION FILED AUG. 8, 1913.

1,122,724,. I Patentd Dec.29,19 14.

Zak/1 75:5555 ifs/7127A a ea eaern GQMEANY, on CLEVELAND, onto, a coaPonATIQN or ontoraocnss or MAKING PRINTING-SLUGS.

Specification bf Letters Patent. P t t 29, 1 14,

Applicationfiled August 8, 1913. Serial No. 783,722.

To all whom it may concern:

Be it known that I, HARRY C. G MMEY EER, .aeitizen of the United States, residing at Cleveland, in thecounty of Cuyahoga and State of Ohio, have intented a certain new and useful Improvement in Processes of Making Printing-Slugs, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings. i

The ultimate object of this invention is to provide a very cheap and efficient line slug adapted to be easily mounted in a grooved or slotted holderfor printing. The holder may be a portion of a printing machine. It -may, for example, be an individual plate which, With a few of my slugs, may constitute an address plate. An effective form-of a slug for use in such slotted or' grooved plate is one wherein the slug has lateral flanges adapted to rest on the top surface of the plate and receive the printing" pressure,

' and has a shank or rib extending through the slot of the plate, and has means adapted to engage the under side of the plate topre vent the slug falling out. Such slug is, therefore, in effect, grooved on'its opposite sides and is of short height compared to ordinary linotype slugs. 1

It is difficult to make side grooves accurately after a .slug is'cast. The operation is also comparatively expensive. My prom ess provides means whereby the slug may be first cast in a standard lvlergeiithaler ma chine, with amodifiedmold and ejector, and may thereafter be cheaply formed 'into a suitable slug for anaddress plate.

-The present application relates .to .the process; the mechanism adaptable .to the Mergenthalermachine for casting theinitial slug is claimed in my divisional application No. 801,170, filed November 1-5, 1913; the finished slug is claimed in my divisionalapplication No. 801,171, filed November 115, 1913. I

Broadly considered, theprocess, consistsof casting theslug in a T-shape with up and down? ribs on its sidesand thereafteri'fem'ov-v ing the bottomportion ofthe slug and the topportion of the ribs=toleave lugs extending from the sides of the shortened shank.

. I prefer to removethebottom 'portionof the slu-gby shearing ito'if, and, atthe'same time, to' flatten orcompress the upper portion of the-ribs. sufiici'ently to'fleave thedein the first place,

sired projecting lugs. I then have my slug,'

comprising a shank, side flanges adjacent to the top and aseries of side lugs adjacent to the bottom. The operation or operations subsequent to castingniay be cheaply and quickly performed;the slugs may be made, in a linotype machine, and I have arranged the parts so that a very slight change is necessary in thestandard commercial linotype machine. The construction enabling such adaptation and the shearing and compressingdevice constitute my apparatus. The invention is hereinafter more fully explained in connection with the accompanying drawings and the essential charact'eristics are summarized n the claims.

In the drawings, Figure 1 isa radial section of a lllergenthalermold Wheel showing my special mold in conjunction with a Mergenthaler melting pot and matrix; Fig.2 is a similar view, showing the mold in position between an ejector and a pair of trimming knives; -Fi g. 3 is an isometric perspective' of the slug cast in,the mold shownin.

Figs. 1 and 2; Fig. 4 is a cross section of the upper portion of the slug and the tool which ,severs and forms such portion, the remainder of the original slug being indicated by .broken lines; .Fig. 5 is an isometric perspective View of the finished slug; and Fig. 6 is a cross section of an address plate carrying severalof myslugs.

Referring to Figs. 1 and 2, 10 indicates the regular mold wheel of a v ll/lergenthaler machine. 11 is a special mold which I at-' tach to this wheel. A indicates the slug cast by this mold, .thisslug appearing in Fig. 3, and also in Figs. ,1 and2 and'1llustrating the form of the mold. ,That is to say. the

mold has 'a long slot for the shank or body portion a of the slug, a pair of rabbets at the outer'end of the slot for the head poron 1% a grooves extending in a direcing, the turning of the wheel 10 bringsthe slug between an ejector 16 and suitable trimming knives 17. ,To enable 'the'standard .M'ergenthaler equipment to be used with my -rnold, I ,form the ejector in a peculiar manner; that is to say, its rear portion 18 has the thickness oi a standard ejector and slides on the standard guide 19, while the front portion isreduced to the size of the shank of my slug and slides between a guide bar 20 and a suitable shim 21'between the blade and slide 11). By this construction I am able to use the slide 19 exactly as it is in the machine without altering anything except the end of the ejector, the block which guides it, and the mold. As will be seen, the operation of the ejector shoves the cast slug toward the right, in Fig. 2-, between the trimming knives 17 which trim off any fin formed where the matrix abuts the mold.

When the slug has been cast and ejected, it is in the form shown in 3. I then submit this slug to the action of a pair of shearing and compressing members shown at 25 in Fig. 4. These two members have knife edges 26 adapted to shear through the ribs and shank of the slug to give it a substantially flat bottom, and they have portions '27 which engage the upper portions of the ribs a and mash or flatten theseribs down almost to the plane of the shank a. The flattening is preferably not quite to this flange, so that there is no danger of disturbing the plane of the shank between these ribs. This is illustrated (in exaggerated form) by the slight remainders of these ribs shown at a in Fig. 5. The portions 27 may be continuous ribs or spaced lugs somewhat wider than the ribs of the slug.

lVhen the members 25 have come together. shown in Fig. 4, they have sheared elf the lower portion a of the slug and have left projecting lugs a on the sides of the shank. This completes the operation, producing a slug of the character shown in Fig. '5, which is readily adapted for insertion in a slotted address plate, as shown at B in Fig. (i The space between the tops of the lugs and the under face of the side flanges constitute in effect side grooves. The address plate is slightly thinner'than the upand-down dimension of this groove.

The printing pressure may be taken by the shoulders or side flanges of the slugs through the plate to its support, or the slug bottom may rest on a suitable support. By carrying the pressure by the side flanges, however, lcan avail myself of the accuracy of casting, and. as the plate may be made of accurate thickness, I can thus produce an address plate. having the accurate height to-paper, desired. To prevent the formation of fillets at the junction of the head and shank, which might interfere with the accuracy of the effective height, I make the mold so that small grooves a are cast in the under face of the head at the junction. This groove also provides space forthe upper portion of the mashed rib.

icense It will be seen that my process is very simple and easily operated; that it-produces I claim is 1 1. The process of making slugs consisting of forming the slugs with a shank and an overhanging head and up and down ribs 011 the side of the shank and thereafter removing an upper portion of the ribs while leaving a lower portion to provide in effect a longitudinal groove.

:2. Theprocess of making line slugs consisting of forming the slugs with ribs on the side and thereafter removing an upper portion of the ribs and the lower portion of the slug leaving anintermediate portion of the ribs, to provide a slug of short height having lugs on its side.

8. The process of making line slugs con sisting of forming the slugs with a flanged head and up-and-down ribs on the side and thereafter removing an upper portion oi. the ribs below the flange and the lower portion of the slug, some distance below the removed portion of the ribs, to provide a slug of short height having a flange and lugs on. its side.

4. The process of making line slugs consisting of forming the slug in a T-shape with ribs on its opposite sides and thereafter removing an upper portion of the ribs below the T-head, while leaving a lower portion separated from the head by the removed portion.

5. The process of making line slugs consisting of forming the slug in a .T-shape with ribs on its opposite sides and thereafter remo ing an upper portion of the ribs below the T-head, while leaving a lower portion separated from the head by the removed? portion, and. removing a still lower portion of the ribs and 'of the shank of the T.

6. The process of making line slugs consisting of casting the slugs with a T-head and with up-an thereof and thereafter removing an upper cl-down ribs on the sides l portion of the ribs to provide in effect ait longitudinal groove.

, 7. The process of making line slugs consisting of casting the slugs with a shank and a head and up-and-down ribs on its opgo" site sides and thereafter removing the lower portion of the shank and the upper portion of the ribs. some distance above the plane of removal of the shank, the intermediate portion of the ribs being left intact.

8.. The process of making line slugs cow sisting of casting the slng'ia'a T-shape with ribs on its opposite sides and thereafter removing an upper portion of the ribs be low the T-head while leaving a lower per tion intact.

while leaving the intermediate portion or the ribs intact. V

11. The process of making line slugs consisting of forming the slug in a T-shape with ribs on its sides and thereafter removing the lower portion of the slug and mashing down the upper portion of the rib beneath the T-head and above the ortion of the slug which is removed, while leaving the intermediate portion of the ribs intact.

l2.- The process of making slu s consisting of casting the slug-in a T-s apewith ribs on its'opposite sides, and thereafter removing the lower portion of the slug and mashing down the upper portion of the ribs immediately beneath the T-head and some distance above the portion of the slug which is removed to leave portions of the ribs on outstanding lugs spaced from the head.

13. The process of making line slugs, consisting of casting the slug in a T-shape with separated ribs on its opposite sides, and

thereafterremoving the lower portion of the slug and removing a portion of the rib beneath the T-head and some distance above the severing plane at the bottom 0 leave intermediate lugs.

14. The process of making line slugs,-consisting of-casting a slug in a 'l' -shape with a head and a shank and up-and-down ribs on the sides of the shank ternahiiating at the head, and thereafter removing the lower portion of theslug and removing the upper 1' portion of the ribs adjabent to the under side 0% the T-head and. some distance above the plane of sevening the lower portion whereby the intermediate parts of the ribs remain as lugs. i

15. The process of niaking'line slugs consisting of forming the slug in a Tshape with ribs on its oppositesilies, and thereafter shearing off the lm'VP, portion. of'the slugand removing portioi lithe ribs some distance above the plane nearing while leaving the ribs intact imn s diately above such plane.

16. The process of makingiy line slugs con sisting (if-forming the sh'igljlwith a shank and Tehead and'with ribs-oaths opposite sides, and thereafter removing the lower portion of the slug and mashing down the upper portion of the ribs, while leaving por tious of the ribs immediately below the masheddown part,

17. The process of making line slugs eonsisting of casting the. slug in a T 'shape with ribs on its opposite sides, and thereafter shearing oi? the lower ortion of the slug and mashing portions 0' the ribs some distance above the plane of shearing, while leaving intact those portions of the ribs which are between the mashed portions V the plane of shearing.

18. The process of making line slugs consisting of forming the slug in a T-shape with ribs on its opposite sides, and there after simultaneously shearing oft the'base of the slug and mashing the upper portion of the irib while leaving a lower portion thereof. w

19. The process of making line slugs co nsisting of casting the slug in a 'l-shape with un-and-down ribs on its opposite sides and thereaftersimultaneously shearing o the base of the slug and mashing'the upper portion only of the ribs, the mashed portion of the ribs extending slightly beyond the plane of the sides of the shank.

20. Theprocess of making line slugs consisting of forming a T-shaped slug with ribs on its side, and simultaneously remoring the lower portion of the entire slug and the upper portion only of the rib down to plane which is a slight distance outside or the side planes of the shank. p 21. The process of making line slugs consisting of casting the slug with a, shank, a T-head and side'ribs extending continuously in an up-and-down direction to the under face of the head, and thereafter removing the lower portion of the shank and ribs an only the upper portion of the ribs adjacent to the under face of the head.

tance than the overhangoi the head, and

thereafter removing the upper portions of the ribs below the T-head for a distance sufficient to cause the remaining portlons of the rihsto present separated lugs.

23. The process of making line slugs consisting of casting the slug in a T-shape with up-and-down ribs on its opposite sides, which ribs do not extend the full width the T head, and thereafter removing approximately to the plane of the sides the up per portion of the ribs, While leaving lower portions projecting from such plane.

24:. The process of making line slugs consisting in originally forming the slug with an overhanging head and up and down ribs,

of the ribs and removing the lower portion While leaving intact the intermediate portion. i

25. The process of making line slugs con sisting in originally forming the slug with an overhanging head and up and down ribs, and thereafter mutilating the ribs at theirupper portion immediately below the under side of the head While leaving lower portions of the ribs as projecting lugs.

26. The process of making slugs consisting of casting the slug with a T-head and a shank, and thereafter treating the shank to produce projections on opposite sides spaced from the head.

27., The process of making short height line slugs consisting of casting the slug with a T-head and a shank, and thereafter treating the shank to produce projections on opposite sides spaced from the head, and removing the shank below the projections, whereby there" is produced ashort-height slug adapted to receive the printing pressure on an original cast surface and provided with means for preventingits falling out of a holder therefor.

line slugs consisting of casting the slug with a T head and a shank of considerable a height, and thereafter by pressure on opposite sides of the shank distorting its east shape to make projections spaced from the head and removing the unused portion of the shank immediately below said projections. w

29. The process of making slugs consisting ofcasting'the slugwith an overhanging T-head and thereafter distorting portions of the slug below the T-head and re moving the bottom portion of the slug.

30. The process of making line slugs con sisting of casting the slug with an overhanging T head "and Without longitudinal grooves, andthereafter by pressure changing the form of the sides toprovide in effect longitudinal grooves.

In testimony whereof, I hereunto afi'ix my signature in the presence of two Witnesses.

V HARRY C, GAMMETEB,

Witnesses: v

ALBERT 1H. BATES,

W. Donner}; 

